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Add amalgamation traits for NFT CollectionId and ItemId (#13514)

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* Add amalgamation traits for NFT CollectionId, ItemId, and DestroyWitness

* Apply @bkchr suggests

* ".git/.scripts/commands/fmt/fmt.sh"

---------

Co-authored-by: command-bot <>
This commit is contained in:
Jun Jiang
2023-03-10 01:44:26 +08:00
committed by GitHub
parent 96ea707603
commit 72c7ffd01a
2 changed files with 9 additions and 6 deletions
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substrate/frame/support/src/traits/tokens/nonfungible_v2.rs
+5 -2
View File
@@ -25,7 +25,10 @@
//! use.
use super::nonfungibles_v2 as nonfungibles;
use crate::{dispatch::DispatchResult, traits::Get};
use crate::{
dispatch::{DispatchResult, Parameter},
traits::Get,
};
use codec::{Decode, Encode};
use sp_runtime::TokenError;
use sp_std::prelude::*;
@@ -33,7 +36,7 @@ use sp_std::prelude::*;
/// Trait for providing an interface to a read-only NFT-like item.
pub trait Inspect<AccountId> {
/// Type for identifying an item.
type ItemId;
type ItemId: Parameter;
/// Returns the owner of `item`, or `None` if the item doesn't exist or has no
/// owner.
substrate/frame/support/src/traits/tokens/nonfungibles_v2.rs
+4 -4
View File
@@ -27,7 +27,7 @@
//! Implementations of these traits may be converted to implementations of corresponding
//! `nonfungible` traits by using the `nonfungible::ItemOf` type adapter.
use crate::dispatch::{DispatchError, DispatchResult};
use crate::dispatch::{DispatchError, DispatchResult, Parameter};
use codec::{Decode, Encode};
use sp_runtime::TokenError;
use sp_std::prelude::*;
@@ -35,11 +35,11 @@ use sp_std::prelude::*;
/// Trait for providing an interface to many read-only NFT-like sets of items.
pub trait Inspect<AccountId> {
/// Type for identifying an item.
type ItemId;
type ItemId: Parameter;
/// Type for identifying a collection (an identifier for an independent collection of
/// items).
type CollectionId;
type CollectionId: Parameter;
/// Returns the owner of `item` of `collection`, or `None` if the item doesn't exist
/// (or somehow has no owner).
@@ -193,7 +193,7 @@ pub trait Create<AccountId, CollectionConfig>: Inspect<AccountId> {
/// Trait for providing the ability to destroy collections of nonfungible items.
pub trait Destroy<AccountId>: Inspect<AccountId> {
/// The witness data needed to destroy an item.
type DestroyWitness;
type DestroyWitness: Parameter;
/// Provide the appropriate witness data needed to destroy an item.
fn get_destroy_witness(collection: &Self::CollectionId) -> Option<Self::DestroyWitness>;